%I A037260
%S A037260 1,3,9,26,62,127,233,393,621,932,1342,1869,2533,3355,4357,5562,6994,
%T A037260 8678,10641,12911,15518,18493,21868,25676,29951,34728,40044,45937,
%U A037260 52446,59611,67474,76078,85467,95686,106781,118799,131788,145797
%N A037260 a()=A037260 and its first [ A037261 ], 2nd [ A037262 ] and 3rd [ A037263 
               ] differences together include every number at most once and are 
               monotonic and minimal.
%C A037260 5 is the only number less than 100 not used in any of the 4 sequences 
               - Larry Reeves (larryr(AT)acm.org), Sep 25 2000
%e A037260 After 1 3 9 26 62
%e A037260 ------ 2 6 17 36
%e A037260 ------- 4 11 19
%e A037260 -------- 7 8
%e A037260 the next free number is 10 which we CAN add to 4th row.
%Y A037260 A037260-A037263 are 4-rowed analogue of A037257-A037259. See A005228, 
               A030124 for 2-rowed version.
%Y A037260 Sequence in context: A013572 A119851 A119825 this_sequence A035313 A055293 
               A034531
%Y A037260 Adjacent sequences: A037257 A037258 A037259 this_sequence A037261 A037262 
               A037263
%K A037260 nonn,easy
%O A037260 0,2
%A A037260 N. J. A. Sloane (njas(AT)research.att.com).
%E A037260 More terms from Larry Reeves (larryr(AT)acm.org), Sep 25 2000